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Analysis of Environmental and Pathogenic Bacteria Attached to Aerosol Particles Size-Separated with a Metal Mesh Device

Author

Listed:
  • Xiaobo Yin

    (Graduate School of Bioscience, Nagahama Institute of Bio-Science and Technology, 1266 Tamura, Nagahama 526-0829, Japan)

  • Seiji Kamba

    (Graduate School of Bioscience, Nagahama Institute of Bio-Science and Technology, 1266 Tamura, Nagahama 526-0829, Japan)

  • Koki Yamamoto

    (Graduate School of Bioscience, Nagahama Institute of Bio-Science and Technology, 1266 Tamura, Nagahama 526-0829, Japan)

  • Atsushi Ogura

    (Graduate School of Bioscience, Nagahama Institute of Bio-Science and Technology, 1266 Tamura, Nagahama 526-0829, Japan)

  • Ernest Apondi Wandera

    (Kenya Research Station, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan)

  • Mohammad Monir Shah

    (Department of Pediatric Infectious Diseases, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan)

  • Hirokazu Seto

    (Department of Chemical Engineering, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan)

  • Takashi Kondo

    (Murata Manufacturing Co., Ltd., 1-10-1 Higashikotari, Nagaokakyo 617-8555, Japan)

  • Yoshio Ichinose

    (Kenya Research Station, Institute of Tropical Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan)

  • Makoto Hasegawa

    (Graduate School of Bioscience, Nagahama Institute of Bio-Science and Technology, 1266 Tamura, Nagahama 526-0829, Japan)

Abstract

Metal mesh devices (MMDs) are novel materials that enable the precise separation of particles by size. Structurally, MMDs consist of a periodic arrangement of square apertures of characteristic shapes and sizes on a thin nickel membrane. The present study describes the separation of aerosol particles using palm-top-size collection devices equipped with three types of MMDs differing in pore size. Aerosols were collected at a farm located in the suburbs of Nairobi, Kenya; aerosol particles were isolated, and pathogenic bacteria were identified in this microflora by next-generation sequencing analysis. The composition of the microflora in aerosol particles was found to depend on particle size. Gene fragments were obtained from the collected aerosols by PCR using primers specific for the genus Mycobacterium . This analysis showed that Mycobacterium obuense , a non-tuberculous species of mycobacteria that causes lung diseases, was present in these aerosols. These findings showed that application of this MMD analytical protocol to aerosol particles can facilitate the investigation of airborne pathogenic bacteria.

Suggested Citation

  • Xiaobo Yin & Seiji Kamba & Koki Yamamoto & Atsushi Ogura & Ernest Apondi Wandera & Mohammad Monir Shah & Hirokazu Seto & Takashi Kondo & Yoshio Ichinose & Makoto Hasegawa, 2022. "Analysis of Environmental and Pathogenic Bacteria Attached to Aerosol Particles Size-Separated with a Metal Mesh Device," IJERPH, MDPI, vol. 19(9), pages 1-13, May.
  • Handle: RePEc:gam:jijerp:v:19:y:2022:i:9:p:5773-:d:811718
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    References listed on IDEAS

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    1. Les Dethlefsen & Sue Huse & Mitchell L Sogin & David A Relman, 2008. "The Pervasive Effects of an Antibiotic on the Human Gut Microbiota, as Revealed by Deep 16S rRNA Sequencing," PLOS Biology, Public Library of Science, vol. 6(11), pages 1-18, November.
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